10.1007/s40094-020-00394-1

Comparative study of behavior of electrical conductivity in KIâAl2O3 and KIâTiO2 heterostructure composites

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  • Suhail Iqbal Wani1,
  • Nazli Zeeshan1,
  • Rafiuddin*1,
  1. Physical Chemistry Division, Department of Chemistry, Aligarh Muslim University, Aligarh 202002, Uttar Pradesh, India

Published in Issue 2023-11-17

How to Cite

1.
Wani SI, Zeeshan N, Rafiuddin. Comparative study of behavior of electrical conductivity in KI‒Al2O3 and KI‒TiO2 heterostructure composites. J Theor Appl phys. 2023 Nov. 17;14(4). Available from: https://oiccpress.com/jtap/article/view/1899
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Abstract

AbstractThe present work reports development of binary KIâAl2O3 and KIâTiO2-based nanocomposites using simple solid-state reaction method and is characterized by X-ray diffraction, Fourier-transform infrared spectroscopy, scanning electron microscopy and impedance spectroscopy. The results show the effect of heterogeneously doped Al2O3 and TiO2 on the ionic conductivity of pure KI which is moderately conductive. The results supported the composite development in which the interface layer portrays a significant part in governing the bulk properties of the compound. Improvement in electrical conductivity is seen in the incorporation of Al2O3 and TiO2 dispersoid into the matrix of KI. With temperature, electrical conductivity increased and the activation energies were found to be decreasing. The activation energies for KIâAl2O3 and KIâTiO2 systems were 0.22 eV and 0.21 eV, respectively, in the temperature range 20â400 °C. Dielectric constant increases with the increase in temperature in the entire temperature range studied attributed to the phenomenon of distortion of electric charges.

Keywords

  • Dielectric constant,
  • Impedance spectroscopy,
  • Ionic conductivity,
  • Ray diffraction,
  • Solid composites,
  • X
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